Mixed 4 × 400 metres relay world record progression
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The following table shows the world record progression in the mixed 4 × 400 metres relay. The first world record in the event was recognised by the International Association of Athletics Federations in 2019.
Prior to Official Recognition
| Time | Team | Country | Venue | Date | Ref |
|---|---|---|---|---|---|
| 3:13.20 | Kyle Clemons Claudia Francis James Harris Phyllis Francis |
 United States |
Eugene | 29 July 2016 | [1] |
Officially Recognised
Awaiting ratification
| Time | Team | Country | Venue | Date | Ref |
|---|---|---|---|---|---|
| 3:12.42 | Tyrell Richard Jessica Beard Jasmine Blocker Obi Igbokwe |
United States |
Doha | 28 September 2019 | [2] |
| 3:09.34 | Wilbert London Allyson Felix Courtney Okolo Michael Cherry |
United States |
Doha | 29 September 2019 | [3] |
| 3:08.80 | Justin Robinson Rosey Effiong Matthew Boling Alexis Holmes |
United States |
Budapest | 19 August 2023 | [4] |
| 3:07.41 | Vernon Norwood Shamier Little Bryce Deadmon Kaylyn Brown |
United States |
Saint-Denis | 2 August 2024 | [5] |